Ive been on a cat 330c with a Labounty universal processor for the last week. My production has been slow, but that 330 happens to have 72ft of boom, so its not like you are hogging through a pile either. Our material varies between bridge beams, bridge deck, and footings. The footings are hard to work. The deck is full of bar, two layers of bar on a 12in x 12in grid. The beams are a pain because they are post tensioned. So those are full of bar and cable. We have prepped about 500 yards of concrete this week, not full time processing, shipped out 2 40ft high side dump trailers full of bar.
I would say your production if you are really spending a full day at processing should be about 600 yards of concrete depending on size and amount of bar, and how much you are working it to make the material There are a few techniques you can use to make sure you are getting the most out of it. When you get a slab vertical, you munch like a typewriter. You start at one end munch, most 3/4s of the width of the processor, munch and so on. At the end of that run, you just go straight down, and go back the opposite way. This pushes the horizontal bar down keeping it away from your hoses, or aux lines, it twins the vertical bar with the rest. When you are through that piece of concrete, you have all your bar lined up, and you can grab a lot of it in one munch so to speak. I would also say since you are planning on having another machine on site, I would go with a muncher instead of a processor. It is simpler, plus its cycle time will be way faster. You will sacrifice rotation for production
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As far as my equipment, since you are renting, I would look for a two machine package. One will have your muncher/processor. The other I want equipped with a thumb, and a generator/magnet. Im also going to have a laborer on site, with a torch kit, and a skid steer with demolition bucket, and forks. He's my get out of jail free card for misc work. As the day starts, the hoe with thumb is running out ahead of other machine. Pre sort the big stuff out, lay out beams, move around slab, and in general make my munching machines day robotic. The muncher is going through everything he can reach and get through. As he goes through, he's getting all the bar he can, As he gathers that he's making "cigars" or "logs", that is for the operation I'm used to, as we would be shearing that right behind. If just loading the bar out and sending to a scrap yard, I'm not going to be super picky, they won't be tight, and the ends tucked in, it will just be a log to make loading in a truck quicker and easier. As you go, You are going to figure out your production, and you will know when you have enough laid out for the muncher to keep him going.
Now I drop back and do a quick sort of the pile that is munched. Im using the bucket and thumb to pick any long/easy to get bar that is left behind. As I'm doing that, Im stretching out the pile of processed concrete so its thin. Now I'm grabbing the magnet. Its probably just going to be hung off the bucket. The leads will be a quick connect to to speak. Im running the mag across the stuff I just stretched out, and anything I see sticking out of the unprocessed pile. Once the mag is across everything, Im dropping it, and taking that processed material and throwing it up in a pile, preferably a windrow. Im tossing everything up as high as I can get it, so its rolling down a hill so to speak. This is sorting my material again. Any bar left is going to be relatively small, and its going to float/roll to the outside and bottom of the pile. Grab the magnet again and do one last quick pick of that material, then its back to laying out for the munching machine.